So, I've gone through multiple SO threads, but I'm unable to do it.
I launched an ec2 instance and installed ubuntu18.04 to it. I installed nginx on top of it.
Now I'm trying to browse my server IP via browser, but it shows it can't be reached. I tried wget localhost on shell and it downloads a file with content If you see this page, the nginx web server is successfully installed and working. Further configuration is required., which means nginx is working fine.
Now, I edited my Security group config associated with the instance as follow:-
Inbound Settings
Outbound Settings
But, it's still not working. What am I missing?
Can you please check internal firewall on your instance, it is enabled or not. If not try to disable it and see.
https://www.digitalocean.com/community/tutorials/how-to-set-up-a-firewall-with-ufw-on-ubuntu-16-04
Secondly, have you installed any webserver on EC2, otherwise it may not be able to find anything on localhost. There should be a webserver to listen to request on port 80.
Related
I have a Spring boot project which I want to host on an AWS-EC2 instance. I was able to create its image using Git-hub, Jenkin and docker. I was also able to successfully pull and run this image in the Linux console of my AWS-EC2 instance.
According the tutorial I was following I should have been able to open the project now using the public IPv4 DNS but the response I got was that it refuse to connect.
I know that this usually has to do with Inbound rules so I added a rule to allow all traffic but it didn't help.
For anyone who wants to know:
Git-hub repository: https://github.com/SalahuddinShayan/telecom
Docker-Hub repository: https://hub.docker.com/repository/docker/salahuddinshayan/telecom
Command I used to run the image in AWS:
docker run -p8081:8081 --name final-app --link docker-mysql:mysql salahuddinshayan/telecom
Security Groups:
Networking Details:
Here is the Error:
I am completely stumped by it. Does anyone an idea on what to do to fix this?
Please check if your client is calling the right protocol, e.g. http vs https.
You are transmitting on port 8081. http://3.110.29.193:8081/ works fine from the EC2 side. 404 status is raised, so this is a client side error, not a server side error.
It means that no firewall is blocking traffic and a process (your app) was found that listens on IP:Port that you require. The problem is that the process it encountered (your app) is sending only a WhiteLabel Error Page, which is a generic Spring Boot error page that is displayed when no custom error page is present. So the issue is with the Spring app itself and not with EC2 or with connection. In other words: the traffic can reach your Spring app, but your Spring app has nothing to say in response.
As a side note, after deploying your app I would advise to refine the inbound traffic rules to allow only the traffic you want. There is no need of allowing all traffic on all ports.
I just launched a instance on AWS and I'm trying to open the website. So I copy the Public IPv4 address and paste it on my page. But it always returns This site can’t be reached 35.78.183.239 took too long to respond.
I've changed my firewall setting to access google chrome and set security groups HTTP, HTTPS. I can't figure out where the problem is. Any suggestions?
You didn't specify what webserver or AMI is on your EC2 instance.
You need to setup an AMI or manually install and setup a webserver for anything to show, otherwise the EC2 instance, while reachable, will not respond.
Make sure that ssh access is enabled and try ssh into the machine. If you can successfully login, then you know the instance is reachable and the problem is with your webserver software. This will help you debug.
What port is your application running on? When you enable HTTP and HTTPS it only allows ports 80 and 443 on the security group. This won't help if your application runs on a different port, so you'll need to add that to your security group to allow inbound traffic.
I am very new to AWS and Devops part, I read some official documentation and I installed Jenkins server in my ec2-instance it's successfully installed and it's running also ,when i try to open by using http://my-public-ip:8080 it's not opening. How to open my Jenkins dashboard in my web browser?
This is my EC2 instance inbound rules:
When I am trying to search in my browser it's showing some thing like this:
This site can't be reached13.235.67.157 took too long to respond.
Try:
Checking the connection
Checking the proxy and the firewall
Running Windows Network Diagnostics
ERR_CONNECTION_TIMED_OUT
I would suggest go to your security group of this instance which is launch-wizard-5 Edit it and You have to choose "Custom TCP rule"
Then you will be able to add the port to 8080
Wait for second
and open http://my-public-ip:8080 in your favorite browser
You'll able to access your Jenkins GUI
Jenkins uses a specific port: 8080
To verify this, inside of your jenkins shell try this:
try with netstat -plnt.
and
curl localhost:8080 -v
If you have a valid response showing you that 8080 port is online, your jenkin is ready to use. Just configure the 8080 port in your AWS inbound rules. Finally you will be able to access with:
http://my-public-ip:8080
If you achieve that, your next goal must be to hide the 8080 port. For that you could use the ELB to assign a custom domain if you have someone.
Add security groups
ALLTraffic
0.0.0.0/0
Then refresh the page
I have a compiled Go project that I want to deploy to an AWS EC2 instance. I just simply upload the application and run ./application on the remote server.
In the terminal, the application is running and says he's listening to localhost:3000.
I've already added the 3000 port to the security group.
However, when I tried to access it in my browser using <public-ip>:3000, it always shows connection refused, whether I've run the application or not.
I tried to run the app locally, it does work.
So is it because I deploy it incorrectly?
It is a bit difficult to help you because of no code being shared.
Some reasons why you got connection refused:
Your application is listening only localhost:3000
EC2 security group does not expose port 3000
How to fix:
Most applications are defining the host address on a config file or env variables. If you have access to change it, change it from localhost:3000 to 0.0.0.0:3000 to accepts connection from all IP or to your_ec2_public_ip:3000
If host address is hardcoded and you have access to code, change the code per above
If you don't have access to config or code to change the host address, then add a reverse proxy to route the incoming call to localhost:3000. This is a good link about using Nginx as reverse proxy https://docs.nginx.com/nginx/admin-guide/web-server/reverse-proxy/
Ensure EC2 Security Group allowing inbound connection for the designated port, in this case, is 3000 if you manage to route the incoming to your_ip:3000
I have deployed jboss-4.2.3 on an EC2 instance. I have added appropriate rule to open port 8080 for inbound traffic. When I ssh into this instance and do curl localhost:8080, the expected response can be seen
But when I try to access it in a browser on my laptop, am unable to connect. Few other things I have tried to eliminate other possibilities
In order to eliminate possibility of firewall issues on my laptop, have tried to connect from another instance on amazon. Doesnt work
Also tried to configure jboss to listen to port 80. Still it can't be accessed. Apache running on port 80 however responds
Any guidance is highly appreciated
Bind your jboss to all IP addresses as below:
./run.sh -b 0.0.0.0
I was struggling with the same issue.
You need to open up port 8080 in the Security Groups as Wildfly is using it. Then you should be able to access the page.